Here are some suggestions for short romances. I have them broken into three categories, since I didn't know what type of romance you are looking for. I also included a few more suggestions than usual, hoping that this will help you find something on the list that appeals to you.

I am sending you a list of books that
include mysteries and those about secrets. I hope you enjoy them all!

Avalon High / Meg Cabot.
Having moved to Annapolis, Maryland, with her medievalist parents,
high school junior Ellie enrolls at Avalon High School where
several students may or may not be reincarnations of King Arthur and his court.

The Face on the Milk Carton / Caroline B. Cooney.
A photograph of a missing girl on a milk carton leads Janie on a search for her real identity.

I am going to suggest some titles based on reviews and also based on comments of other readers. I am also going to take into account what you said you liked about the book. I have asked our library to order some titles by Hillary Frank, so that I can familiarize myself with her work. It is always fun to be introduced to a new author! I hope you will like some of these titles - all from the library's young adult collection.

I'm so glad you made a Book Match request in order to kill two birds
with one stone: something you can have a good laugh reading and then
write an easy critique! I hope you'll find something that grabs you
from the list of books below.

Here are some suggestions for books with school drama/situations and
plots that keep you guessing at the ending.

The Rules of Survival by Nancy Werlin.
Seventeen-year-old Matthew recounts his attempts, starting at a young
age, to free himself and his sisters from the grip of their emotionally and physically abusive mother.

Jumping the Scratch by Sarah Weeks.
After moving with his mother to a trailer park to care for an injured
aunt, eleven-year-old Jamie Reardon struggles to cope with a deeply
buried secret.

I'd particularly recommend The Haunting of Alaizabel Cray and A Great and Terrible Beauty.

A Nightmare's Dozen: Stories From the Dark illustrated by Michael Hussar edited by Michael Sterns.
Frightening tales from a multitude of authors promise to keep you awake at night.

Cirque Du Freak: A Living Nightmare by Darren Shan.
Two boys who are best friends visit an illegal freak show, where an
encounter with a vampire and a deadly spider forces them to make
life-changing choices.

Here are some suggestions of novels in verse that I think will appeal to a teenage boy.

Bronx Masquerade by Nikki Grimes.
While studying the Harlem Renaissance, students at a Bronx high school read aloud poem they've written, revealing their innermost thoughts and fears to their classmates.

Comfort by Carolee Dean.
Kenny fantasizes about escape from his small hometown of Comfort, Texas, following his father's release from prison.